Apparatus for discharging ashes and other materials from ships.



W. LPBAYLAY.

APPARATUS FOR DISGHARGING ASHES AND OTHER MATERIALS FROM SHIPS.

APPLICATION FILED AUG. 6, 1910.

0 1,1 00,705. Patented June 23, 1914.

2 SHEETS-SHEET l.

COLUMBIA FLANOGRAPH C0..IMH1NOM. h. c.

' W. L. BAYLAY.

AiPABATUS FOR DISOHARGING ASHES AND OTHER MATERIALS FROM SHIPS. APPLICATION FILED AUG. 6, 1910.

01,100,705. Patented June 23,1914.

2 SHEETSSHBET 2.

UNITED STATES PATENT onmon.

WILLOUGHBY LAKE BAYLAY, OF BLAGKHEATH, ENGLAND, ASSIGNOB T0 J. STONE & COMPANY, LIMITED, 015 DEPTFORD, ENGLAND.

APPARATUS FOR DISCHARGING ASHES AND OTHER MATERIALS FROM SHIPS.

Specification of Letters Patent.

Patented June 23, 1914.

Application filed. August 6, 1910. Serial No. 575,952.

To all whom it may concern:

Be it known that I, WILLOUGHBY LAKE BAYLAY, a subject of the King of Great Britain, residing at 28 Hardy road, Blackheath, in the county of Kent, England, have invented certain new and useful Improvements in Apparatus for Discharging Ashes and other Materials from Ships, of which the following is a specification.

This invention relates to improvements in apparatus for discharging ashes, clinker ballast and bilge water and the like from ships below the water line and known as underline expellers.

The apparatus to which this invention appertains comprises an operated valve device which alternately receives a charge of ashes and clinkers and delivers same to a moving stream of water the motion of which is due to a centrifugal pump or other appropriate apparatus.

This invention has for its object to combine with apparatus of this type pneumatic means adapted to render the apparatus eflicient and safe.

Tn order to enable this invention to be readily understood, reference is made to the accompanying drawings in which Figure 1 is a side elevation of an ash ejecting plant constructed, arranged and adapted to operate according to the present improvements. Fig. 2 is a central vertical section of the valvular apparatus and gate valve as viewed from the right hand side of Fig. 1. Fig. 3 is a view to a larger scale of the mechanically operated valves seen in Fig. 4 and its operating cam and cam wheel, and Fig. i is an elevation of the left hand end of a modified arrangement of the compressed air supply for the valvular device.

A suitable apparatus to which this invention is applied comprises a grating a and crushing rollers Z) or any usual crusher, a hopper 0 arranged beneath the crusher and a com partmental valvular device which in the example shown consists of a hollow revoluble plug 01 arranged beneath the hopper c. The filling and discharge opening or port 6 in the plug is alternately presented to the opening of the hopper 0 and to a discharge pipe or connection 7 which opens into the duct 9 through which a constant stream of water is maintained by the centrifugal or other pump 72,. The casing j of the plug (1 is provided with an opening or port 70 preferably nearer to one end of the plug d than the opening a as shown in Fig. 1, for the admlssion, according to these improvements, of compressed air or gas to the interior of the plug cl, a compressed air pipe l being connected with the casing for supplying pressure to such port. The port is is shown in the side wall of the casing, but of course it might be in the end thereof. The valve for admitting the pressure to the interior of the plug is constituted either by a port or opening m in the plug or valvular device or a separate valve outside of the casing may be employed as hereinafter described or the port m in the valvular device may be used in addition to the valve outside. The port is lies in the path of the port m and from the relative positions of the ports seen in Fig. 2 it will be understood that the port m .uncovers the air pressure supply port 70 after the commencement of the presentation of the opening 6 to the discharge connection 7 but of course it might be arranged for the port m to uncover the port 70 just before the port 6 commences to move over the discharge connection f. Similarly the port m is shown in such a position as will cause the air pressure to be cut ofi" some little time before the port 6 moves away from the discharge f but it may be arranged for the air to be supplied up to the moment of the port 6 leaving the discharge f. The exhaust from, or relief of pressure within, the plug (Z, in order to prevent such exhaust or relief from taking place into the hopper and blowing the contents thereof into the stoke hold, may be efiected in a similar manner to the manner in which the admission is effected, that is to say a port a lying in the path of the opening 6 may be formed in the casing j so as to permit the compressed air within the plug d to escape to the atmosphere when the opening 6 comes opposite the port a. The supply of compressed air may be admitted to the discharge pipe f between the valvular device d and the moving stream of water in the duct 9 as shown in Figs. 3 and 4 in which figures the air supply is normally prevented from entering the pipe f by a valve 0 which is seated partly by a spring 10 and partly by the pressure of the air. The valve 0 is opened once during every revolution of the plug by a cam g on the gear or sprocket wheel 1- which cam g strikes the antifriction roller 8 on the end of the valve stem 25 and lifts the valve 0 from its seat. Suitable relative positions of the ports 6 and dis charge pipe f are diagrammatically indi cated in Fig. 3.

The pump it which is preferably of the centrifugal or rotary type is driven from a suitable source of power as for instance by the electric motor '0 the rotor or armature of which is carried on the vertical shaft w. The valvular device and crusher are conveniently driven from the same source, the power being conveniently transmitted by the bevel gears 09, intermediate shaft 00 and sprocket gear the sprocket wheel of the crushed being indicated by the letter 2 and the wheels for driving the revoluble plug by the letter 1* and numeral 1.

According to one arrangement the suction pipe 2 of the pump it is connected to the sea by a branch 21 and by a pipe 3 to the strainer 31 in the bilge or in ballast tanks or in both, and valves 4 and 5 are provided to open or close the suction to any of these sources. The outlet f from the valvular device is in this case directed into the delivery pipe g of the pump it but it might be the suction pipe if it is preferred to work according to the system in which the mixed ashes and water are passed through the pump. The delivery pipe 9 delivers to the sea through the bottom of the vessel by the pipe 82 or through the side by the pipe 33. The said outlet 7 is either at right angles to the pipe 9 or it may meet the latter at a different angle.

The compressed air may be obtained from a rotary compressor 6 coupled to the motor 4: and a reservoir 7 and gage 8 may be fitted to the compressed air pipe 9 in accordance with known practice.

As usual the outlets to the sea are provided with gate valves such as 10 or the like which are adapted to be operated by a hand wheel 11 so as to isolate the apparatus when required.

In all cases the pressure of the air admitted issuflicient to overcome the pressure of water due either to the head corresponding with the degree of immersion of the ship or the pressure due to the working of the water pump, so as to prevent the water from entering the valvular device.

What I claim as my invention, and desire to secure by Letters Patent is 1. Apparatus for discharging refuse from ships below the water line comprising in combination, a receptacle for the refuse, a discharge duct, a valvular device between said receptacle and duct and adapted to alternately receive successive charges of refuse and to deliver same to said duct, a discharge connection between the valvular device and the duct, a water pipe discharging below the water line of the ship in connection with said duct and adapted to carry water past the delivery end of the discharge connection, a pump in connection with said water pipe adapted to produce a continuous stream of water therein, a compressed air supply pipe connected with the discharge connection in such a manner as to prevent water from rising into said valvular device, and means adapted to relieve the pressure from the valvular device prior to each opening of the valvular device to the refuse receptacle, substantially as set forth.

2. Apparatus for discharging refuse from ships below the water line comprising in combination, a receptacle for the refuse, a discharge duct, a valvular device between said receptacle and duct and adapted to alternately receive successive charges of refuse and to deliver same to said duct, a discharge connection between the valvular device and the duct, a water pipe in connection with said duct and having its outlet below the water line and adapted to carry water past the delivery end of the discharge connection, a pump in connection with said water pipe adapted to produce a continuous stream of water therein, a compressed air supply pipe eonnectcd with said discharge connection, a valve control in said compressed air supply pipe adapted to admit compressed air intermittently to said discharge connection, each admission being timed to take place after said valvular device has closed to said receptacle, and means adapted to relieve the pressure from the valvular device prior to each opening of the valvular device to the refuse receptacle, substantially as set forth.

3. I11 apparatus for discharging refuse from ships, the combination with a water pipe having a sub-aqueous discharge end and means to maintain a constant stream through said pipe under all conditions of operation; of a receptacle for refuse, a duct discharging into said pipe, a valvular device for receiving refuse from said receptacle and delivering the same to said duct while preventing at all times communication between the duct and receptacle, and means to supply compressed air to said valvular device when discharging into said duct, for the purpose specified.

4. In apparatus for discharging refuse from ships, the combination with a water pipe having a sub-aqueous discharge end and means to maintain a constant stream through said pipe under all conditions of operation; of a receptacle for refuse, a duct discharging into said pipe, a valvular de vice for receiving refuse from said receptacle and delivering the same to said duct while preventing at all times communication name to this specification in the presence of between the duct and receptacle, and ineans two subscribing witnesses. to supply compressed air to sai va vular device when discharging into said duct, and VILLOUGHBY LAKE BAYLAY' means to vent said device and duct after Witnesses: each discharge of the device. ERNEsT HARPER,

In testimony whereof I have signed my ETHEL M. WEBB.

(topics of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

